NL146653B - Communicatiestelsel, omvattende een synchrone kunstmatige aardsatelliet. - Google Patents

Communicatiestelsel, omvattende een synchrone kunstmatige aardsatelliet.

Info

Publication number
NL146653B
NL146653B NL676710481A NL6710481A NL146653B NL 146653 B NL146653 B NL 146653B NL 676710481 A NL676710481 A NL 676710481A NL 6710481 A NL6710481 A NL 6710481A NL 146653 B NL146653 B NL 146653B
Authority
NL
Netherlands
Prior art keywords
communication system
system including
earth satellite
artificial earth
synchronous
Prior art date
Application number
NL676710481A
Other languages
English (en)
Dutch (nl)
Other versions
NL6710481A (xx
Original Assignee
Western Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co filed Critical Western Electric Co
Publication of NL6710481A publication Critical patent/NL6710481A/xx
Publication of NL146653B publication Critical patent/NL146653B/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/2045—SS-FDMA, FDMA satellite switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Aerials With Secondary Devices (AREA)
  • Radio Relay Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
NL676710481A 1966-08-25 1967-07-28 Communicatiestelsel, omvattende een synchrone kunstmatige aardsatelliet. NL146653B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US575006A US3406401A (en) 1966-08-25 1966-08-25 Communication satellite system

Publications (2)

Publication Number Publication Date
NL6710481A NL6710481A (xx) 1968-02-26
NL146653B true NL146653B (nl) 1975-07-15

Family

ID=24298544

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676710481A NL146653B (nl) 1966-08-25 1967-07-28 Communicatiestelsel, omvattende een synchrone kunstmatige aardsatelliet.

Country Status (6)

Country Link
US (1) US3406401A (xx)
BE (1) BE699829A (xx)
DE (1) DE1591811C3 (xx)
GB (1) GB1182629A (xx)
NL (1) NL146653B (xx)
SE (1) SE348078B (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500411A (en) * 1967-04-26 1970-03-10 Rca Corp Retrodirective phased array antenna for a spacecraft
US3541553A (en) * 1968-03-27 1970-11-17 Rca Corp Satellite communications systems
US3711855A (en) * 1969-10-15 1973-01-16 Communications Satellite Corp Satellite on-board switching utilizing space-division and spot beam antennas
US3704463A (en) * 1970-06-02 1972-11-28 Us Navy Direction finding antenna system
US3852763A (en) * 1970-06-08 1974-12-03 Communications Satellite Corp Torus-type antenna having a conical scan capability
FR2148341B1 (xx) * 1971-08-09 1977-01-28 Thomson Csf
AU469466B2 (en) * 1972-02-07 1976-02-12 Commonwealth Scientific And Industrial Research Organization Generation of scanning radio beams
US3852765A (en) * 1972-12-19 1974-12-03 Itt Spherical double reflector antenna
US3881178A (en) * 1973-04-03 1975-04-29 Hazeltine Corp Antenna system for radiating multiple planar beams
US4105973A (en) * 1976-10-15 1978-08-08 Bell Telephone Laboratories, Incorporated Multibeam, digitally modulated, time division, switched satellite communications system
US4145658A (en) * 1977-06-03 1979-03-20 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams
US4163235A (en) * 1977-08-29 1979-07-31 Grumman Aerospace Corporation Satellite system
US4188578A (en) * 1978-05-19 1980-02-12 Bell Telephone Laboratories, Incorporated Satellite communication system which concurrently transmits a scanning spot beam and a plurality of fixed spot beams
US4236161A (en) * 1978-09-18 1980-11-25 Bell Telephone Laboratories, Incorporated Array feed for offset satellite antenna
DE3011187C2 (de) * 1980-03-22 1984-08-02 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Satellitenantenne für die Kommunikation zwischen zwei Bodenstationen über einen Synchronsatelliten
US4338608A (en) * 1980-09-30 1982-07-06 The United States Of America As Represented By The Secretary Of Commerce Triple-beam offset paraboloidal antenna
US4535338A (en) * 1982-05-10 1985-08-13 At&T Bell Laboratories Multibeam antenna arrangement
JPH0951293A (ja) * 1995-05-30 1997-02-18 Matsushita Electric Ind Co Ltd 室内無線通信システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1128952A (fr) * 1955-03-17 1957-01-14 Materiel Telephonique Antenne pour ondes ultra-courtes
US3095538A (en) * 1960-10-28 1963-06-25 Silberstein Richard Satellite relay station using antenna diversity selection
US3317912A (en) * 1963-07-29 1967-05-02 Kenneth S Kelleher Plural concentric parabolic antenna for omnidirectional coverage

Also Published As

Publication number Publication date
SE348078B (xx) 1972-08-21
BE699829A (xx) 1967-11-16
DE1591811C3 (de) 1981-10-08
DE1591811B2 (de) 1974-10-03
DE1591811A1 (de) 1971-02-18
NL6710481A (xx) 1968-02-26
US3406401A (en) 1968-10-15
GB1182629A (en) 1970-02-25

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